Lesson 1_How Traits Change

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What is a mutation in genetics?

Back

A mutation is a change in the DNA sequence of a gene, which can lead to changes in the traits of an organism.

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NGSS.HS-LS3-2

Front

What is a gene?

Back

A gene is a segment of DNA that contains the instructions for making a specific protein.

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NGSS.HS-LS1-1

Front

What do most genes provide instructions for?

Back

Most genes provide instructions for making proteins.

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NGSS.HS-LS1-1

Front

What is the relationship between DNA and genes?

Back

DNA is the molecule that contains genes, which are specific sequences of DNA that code for proteins.

Front

What is a chromosome?

Back

A chromosome is a long, thread-like structure made of DNA and proteins that contains many genes.

Front

What is the role of proteins in the body?

Back

Proteins perform a variety of functions in the body, including building tissues, facilitating biochemical reactions, and supporting immune function.

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NGSS.HS-LS1-1

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable traits or characteristics of that organism.

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NGSS.HS-LS3-1

Front

What is deoxyribonucleic acid (DNA)?

Back

DNA is the molecule that carries the genetic instructions for life and is composed of two strands that form a double helix.

Tags

NGSS.HS-LS1-1

Front

What is the function of chromosomes?

Back

Chromosomes organize and protect DNA, ensuring proper replication and distribution during cell division.

Front

What is the significance of mutations?

Back

Mutations can lead to genetic diversity, which is essential for evolution, but they can also cause genetic disorders.

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NGSS.HS-LS3-2

NGSS.HS-LS4-2